50 results about "Iridium(III) chloride" patented technology

The invention relates to a method for preparing an iridous chloride hydrate (IrCl3.3H2O). The method comprises the following steps of: adding a hydrochloric acid solution and an iridium powder raw material into a U-shaped electrolytic cell, loading alternating current onto the two ends of an electrode, and directly dissolving the iridium powder into hydrochloric acid to obtain a chloroiridic acid aqueous solution; filtering the chloroiridic acid aqueous solution, and distilling to obtain a chloroiridic acid concentrated solution; and crystallizing the chloroiridic acid concentrated solution in a crystallization furnace to obtain an iridous chloride hydrate. In the preparation method of the iridous chloride hydrate, the iridous powder raw material is directly dissolved into the hydrochloric acid without adding any other reagent, so that the production cost is lowered, and a product is crystalized into the iridous chloride hydrate which is easy to carry, has stable iridium concentration, and is convenient to weigh and use; and when a high-purify iridous powder raw material is adopted, the impurity interference can be prevented, and a high-purity iridous chloride hydrate is prepared.

The invention discloses a synthesis method of iridium acetate. The method comprises: 1. dissolving iridium trichloride in water to form iridium trichloride solution and heating; 2. dissolving silver acetate in acetic acid solution to form silver acetate solution, Then silver acetate solution is added dropwise in the heated iridium chloride solution, reflux reaction under constant temperature, obtains the slurry that contains precipitation; 3, filter slurry to obtain filtrate and filter residue, wash filter residue with water and wash liquid into the filtrate to obtain the mother liquor, and then the mother liquor is successively concentrated and dried to obtain iridium acetate. The invention does not need to melt the iridium powder with alkali, directly transfers the iridium-containing raw material into the liquid reaction system, and synthesizes iridium acetate through one-step reaction, which overcomes the problem of insufficient reaction caused by the limited solubility of iridium in the traditional process, and has no adverse side reactions. The purity of the method is high, the conversion rate of iridium acetate is greatly improved, and the method is simple, the process is easy to control, the pollution to the environment is small, and it is suitable for industrialization.

The invention belongs to the field of organic electroluminescent materials and relates to a fluorene and spiro-fluorene substituted phenylpyridine iridium complex and a preparation method and application thereof. The preparation method comprises the following steps of: synthesizing various fluorene and spiro-fluorene substituted phenylpyridine iridium ligands; reacting the ligands with iridium(III) chloride hydrate (IrCl3.3H2O) to obtain a chlorine-bridged dimer intermediate; and reacting the intermediate with acetylacetone in a proper solvent to obtain the fluorene and spiro-fluorene substituted phenylpyridine iridium complex. The iridium complex can change types and positions of the substituent of phenyl in a bidentateligand, can adjust luminous wavelength in a certain range and can be widely applied in the field of organic electroluminescence.